Abstract
In this paper, the steady-state operating performances of single-phase squirrel-cage self-excited induction generator (SEIG) are evaluated by using the per-unit frequency in addition to a simple steady-state analysis based on the per-unit slip frequency. The single-phase SEIG operating performances, estimated by the per-unit slip frequency steady-state analysis at the prime move speed and the inductive load power variations, are discussed with those obtained by using the per-unit frequency. The results provide close agreements with a simple analysis and an efficient computation processing procedures. Moreover, the single-phase static VAr compensator (SVC) composed of the thyristor controlled reactor, the thyristor switched capacitor and the fixed excitation capacitor is applied to regulate smoothly the generated output voltage of the stand-alone single-phase induction generator with a variable inductive load. The fixed gain PI controller is employed to adjust the equivalent capacitance of the single-phase SVC. The experimental and simulation results are illustrated the practical effectiveness of the additional SVC with the PI controller-based feedback loop to regulate smoothly the output voltage of the single-phase SEIG.
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